As a customer of Koelbel Training Research you already know: A good fitness equipment for muscle building must always make successful training and the training progress controllable. Without ability to control the resistance used is carried out a "blind" and thus ineffective training. Likewise, increases the resistance must not only be possible, but they should also be measurable and be the right time recognizable. That's why part of every successful training also getting a workout diary for controlled results. [more...]

It is very important to measure your training progress regularly. You notice some physical change not immediately in the mirror. Using a suitable measuring tape however you can already find 1-2 inches more muscle size quickly. [more...]